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hier.part (version 1.0-6)

combos: All Combinations of a Hierarchy of Models of n Variables

Description

Lists a matrix of combinations of 1 to n variables in ascending order

Usage

combos(n)

Arguments

n

an integer: the number of variables

Value

a list containing

ragged

a matrix with zeroes in empty elements and 1 in column 1, 2 in column 2 ... n in column n for full elements

binary

a matrix as for ragged, but with 1 in all full elements

Details

Lists hierarchy of all possible combinations of n variables in ascending order, starting with 1 variable, then all combinations of 2 variables, and so on until the one combination with all n variables. This function is used by all.regs to structure the models required for hierarchical partitioning.

See Also

all.regs